Batch meter for concrete mixing apparatus



Oct. 13, 1953 A. w. SLACK ETAL BATCH METER FOR CONCRETE MIXING APPARATUS Filed June 7, 1952 4 Sheets-Sheet l INVENTORS ALFRED SLACK ROBERT ASNYDER Oct. 13, 1953 A. w. SLACK ETAL BATCH METER FOR CONCRETE MIXING APPARATUS 4 Sheets-Sheet 2 Filed June 7. 1952 N mm \II II II 1 nilll J N IIPIkI Y? 0 mm Nw M INVENTORS ALFRED W.SLACK ROBERT A.SNYDER N GE Oct. 13, 1953 A. w. SLACK ETAL 5 5 BATCH METER FOR CONCRETE MIXING APPARATUS I Filed June 7, 1952 4 Sheets-Sheet 3 ALFRED \ALSL'ACK ROBERT ASNYDER IN VEN T ORS Oct.v 13, 1953 A. w. SLACK ETAL 2,655,355

BATC H METER FOR CONCRETE MIXING APPARATUS Filed June '7, 1952 4 Sheets-Sheet 4 [47 ZOI ZOO FIG. 5

ALFRED W. SLACK ROBERTA.SNYDER Patented Oct. 13, 1953 ton Generation, of Delaware Harrison, N. J., a, corporation" APRliCMIOINIIlIl'GE-T, 1952, Serial No. 292,282 2350 1311118; C11. 259 -463) invention relates; generalist to, concrete apparatus and? more, particularly, to a batch 7 meter used. in conjunction. with? concrete mixing apparatus such as. concrete mixers, \pavers and the like for securing accurate icontrolled; and uniform mixture of concrete (therein.

It. has been! found. that, int. connection. with nublic'. Works programs building-v construction, road; construction, etc.,=.. requiring; concrete, that thespecificationsrelatingitotthese contractscali ifigjfihegmgdifledgffifflt; of the myention for. variousitypes. of. concrete mixtures .orj slump Refenfing; to: the; drawings-,5 the: batch! meter of," c r a consistency d. qu It i arrangement; with avsingledrum; is; diagram? therefore;,necessa,ry that,contractorsibeuable to matically illustrated in Figure 1, ofzthez-dra-wings meet these varying,requiitementsendtmbeable; shqwimggw mixing drum I ihalvingfa chargjng skip to produce andIreproducewitha, faiindegree of 2 nl fmgmenttof which; shown: and, a bil y e QHi Bm h S' fiielfiqbatblifib: bawh discharge: chute: (not: shown) which; is; operated flif c efie m d y particular p byte! disehargeichutez invent. Itwilhbe under creteniixingmachinerygt I stoodzt thatt; while they-discharge chutelever is It" haslb ibundlfliati be. (1511a no shown aesbeingtaz menuc-litypedever, it is ob? th'e's'anie quantities oi iiigfiedintslfiy controlling the number of I'EVOliitiOnls which: the miii'iiig will" makejor? the 11511121011151 batch. To eliminate any human errorithatiimight.develop in counting, the" necessary nmnberofrevolutions';

it ii'as'tiee'n further foundth'at' a, meter which acts in. conjunction with the mixing drum" may befiused. 1

Accordingly, it an object. of the present inventionto' provide a; batch nieterwhich coacts 2 liistaidiinventionajwith'awsinglez mixtngedrum;

Eigureaztis azfrontiwieww ofcthecrbatch imeter; Figure 3 is a, side view partially in sectiomon Iiitguret 4:155: an diagrammatic sketch: showing an; mutiified? form; of: the; invention needs with a; dual imixingtdmmn liignrctirisraisidewiew impartial scctimrshuw 0115. that the disel'utrge;- chute could be operated brother: devices and; controls; without departing from: thmspiritt Mathis-invention:-

The charging; skin]- on loader 2 is? pivotally mounted-(iand movable-zwithi a :pivot shaft 4-: having joonneeted;thereomatkiokeout lever "5 soft-hat as; the skipr 2 t is raised: and, lowered; the kick-out lever 51 will .beim'oved; relative to; these: respec= tive positions E'ig n'eswl andimfurther show thebatchmeter with the charging skip '01 a.m ixiiig"di'um, 01 with generally designated 5 t adjwenp t both the charging: skip? a'ncl thec trwnsfer" chute mixing drum by any Suitable. means, The "-y }9n; q;- d u rp mixers -b n used baitcmmeter 6rincludesarsubstantiallytrectanguwh oh nwv nts lsgh s i fmm m; 9 lariboxdike housmez'lrin-iw hichesetting or locki- 'ie foliitions in. accordance withithe desired result. Eggs; ga: 523 31 21 2? fi g g It'is'a; further objt'ect'ofjthe present'invention' H it it 7.5 shout the m' mvmt' match meter.inwhiehiahsettihgtrocl 55 i f w 9 9ifl f a he a t. t .t v i 1 =kick-out lever 5: The operated. in COIIJ.unCt10n.W1th;th8 chargingskip mi h end 9 t. n t n or transfer chute willgset'. the meter automati: 40 Pther ewmmw t'm t i cunt, and" willsimultaneously pro vide meanskfor Q Q i QQ #FS activetihg, a. counter to determine, thenumber of stbp membehorcontroi device [3 wh ch as hetcliesjtiiat are mixed" citing: a. periodiofj operashownfiuFieure s n e b t t p vg vim; ro'dj I4. on: the discharge. chute opera ing ever 2 Withthe'se andjotlier objects'inuviewbasmay Itiwillnbe. understoodithatwhilctthistype'control appear from theiii accompanymggs ecification, ,the is. shown. that. other, types. of controls actuated invention. consists of various features. of! con! by, the levers? H1 and: I7; could; be usedwithout strlietibii a'ndtcbmbihatibii of parts. which! will depanting f rom.thespirittofithe invention. he'fiist' described in connection with theaccom- Thus,- w hent the; charging. skip 2 raised to Denying drawingsshowm ga batchmeterfor con load its contents intowthe drum,.thekicke cizigei miiztiiilig, apiiaiatus, of; a tireferredi form: em? out: lever, 5 isnivotedt to. actuate the-locking ha; bo "i iri'g, "e ihven ion," and; he featuresiorm 8 which in, turntactuatesthe,stop-member I 1%., the invention wilibesmcifiballyfiointed out throughtthe levers and, I2 to preventithe dis+ i; ;9 i i charge chute (notshown). frombeing operated In the drawings; until the setting or locking bar 8" is feleased'by m h tic sketch showin'g the the automatic operation of the batch meter 6 as is hereinafter described.

The batch meter 6 includes a drive portion and. a driven portion such that the drive portion is continuously rotated whenever the mixing drum is rotated and the driven portion is brought into engagement with the drive portion for a predetermined number of revolutions. After the predetermined number of revolutions the driven portion actuates and releases the setting bar 8 so that the movable stop member l3 will be moved out of abutment with the stop rod M on the operating lever 3 to allow the operating lever or the like control to be operated for activating the discharge clutch (not shown).

Drive portion of batch meter 7 Accordingly, referring to Figure 2, a fragment of the mixing drum is shown having a ring gear i disposed thereon to mesh and drive a pinion it which is fixedly connected to and hence in turn rotates shaft l1 and a bevel gear l8 connected on the end of the shaft l! remote from the pinion I5.

As is shown in Figure 3, the shaft l1 and bevel gear I8 extend into a gear housing l9 formed and connected to the back wall 2|! of the housing '5 of the batch meter 5. In the gear housing I9, the bevel gear Is in turn engages a beveled pinion 2! connected to one end of a transverse shaft 22 mounted in said batch meter housing by bushings 23 and 24 perpendicular to the longer legth of the housing 6.

A Worm shaft support 28 as shown in Figures 2 and 3 is movably and rotatably mounted, on i transverse shaft 22 for movement through an are having the axial line of said transverse shaft as its center. Lateral brackets 26 and 2? on said worm shaft support 25 provide means for mounting a worm shaft 28 such that its axial line is perpendicular to the axial line of the transverse shaft 22. A worm 29 is provided on said worm shaft 28 and is'rotatable therewith at all times.

The worm shaft 28 is rotated by miter gears 39 and 3|, one miter gear '3!) being disposed on the end of the worm shaft l5 so that its beveled face is at all times in engagement with the other miter gear 3| on the transverse shaft 22 in the arc of movement of the worm shaft support member 25, all of which isclearly shown in Figures 2 and 3 of the drawings. 7

Thus, whenever the mixing drum is rotated the ring gear l5 will drive the pinion l6 which in turn drives the shaft I! and bevel gear l8. The bevel gear l8 meshing with the beveled pinion 2| rotates the transverse shaft 22 connected to the pinion 2| and the miter gear 3|. The miter gear 3| in turn rotates the miter gear 30 and shaft 2:; so that the worm 29 is always rotating whenever the mixing drum I is rotating.

The worm shaft support member 25 is conpin member 36 extending through the setting or looking bar 8.

When the setting or looking bar 8 is actuated by the kick-out lever 5 as above described it will move the worm shaft support member 25 from the released or non-engaged position to the locked or set position. This movement will be limited by a stop member 3 1 which projects laterally from the worm shaft support 25 which abuts a threaded adjusting means 38 held in any desired position by a locking nut 39 whereby the movement of the worm shaft support member 25 will be just sufficient to bring the worm 29 into engagement with the driven portion of the batch meter 6.

Driven portion of batch meter The movement of the worm shaft support 25 is adjusted as above described to allow the worm 29 to engage gear teeth 40, cut on the periphery of a semi-circular quadrant 4| made of any suitable material. The quadrant is rotatably mount- 'ed on a quadrant shaft 42 disposed transversely with respect to the longer length of the housing I in a plane parallel to the plane of the transverse shaft 22. Figure 2 shows the quadrant 4| is weighted by any suitable means so that it will when not engaged by the worm 253 normally rotate to a position determined by abutment against a quadrant stop 43 of a movable adjustment clamp 46 adapted to be slidably positioned in an arcuate slot 45 on the face of the quadrant 4| by means of a threaded member 46 and thumbscrew 41. The movable adjustment clamp 44 will be set in accordance with the desired number of turns of the mixing drum required.

Thus, since the worm 29 is continuously operating whenever the mixing drum is rotating, when it is in engagement with the teeth 40 of the quadrant 4|, it will continue to rotate the quadrant 4| as long as it is in engagement therewith. The number of turns of the mixing drum can therefore be measured in terms of the teeth 40 on the quadrant 4| and hence the desired arc of engagement predetermined for a given batch of concrete to be mixed in the mixing drum. 7

In order to set the movable adjustment clamp 44 one face of the batch meter 5 is open, and a cover member 48 is accordingly provided for this face of the batch meter 6.

Locking and releasing the setting bar 8 A bracket 50 is mounted across the longer 7 and locking rod 8. The locking rod 52 is normally urged towards the setting bar 6 by a locking bar nected to and movable with the setting or lock- 7 ing bar a through a connecting spring 32 connected between the worm shaft support 25 and a 7 fixed projection 33 on thesetting or locking bar 2. The setting or locking bar 8 normally urges the worm shaft support 25 to the released or nonengaged position with respect to the driven portion hereinafter described as is indicated by the ,phantomized dotted portion in Figure 1 of the drawings. This is done by means of a setting bar spring 34 mounted about the setting bar 8 and abutting at one end the inner wall of the' housing and at the other end a washer 35 and spring 53 mounted. about the locking rod 52 and abutting a locking bar trip 54 fixedly connected and movable with the locking rod 52 at one end and the locking support 5| at the other end. In

the released or non-engaged position the end of a the locking rod 52 will be in sliding contact with a cam stop member 55 fixedly connected and movable with the setting bar 8, all of which is clearly shown in Figures 2 and 3 of the drawings.

When the setting or looking bar 8 is actuated the setting bar spring 34 is compressed and at the same time since the position of the locking rod 52 is fixed and it is merely in sliding engagement with the cam stop member 55, it will when the setting bar 8 has moved to bring the drive portion into the engaged position slip off the cam accuses stop. member 55" into sliding engagement with the setting bar 8, and will prevent the return of the setting bar 8 under expansion of the setting bar spring 34 as it will now abut endwise with respect to the cam stop member 55. The setting or looking rod 8* will remain in this position until the locking bar 52 is released.

To release the locking rod 52 a quadrant lever generally designated 56 is provided. The quadrant lever 56 includes a substantially circular central portion 51, and extending therefrom releasing lever arm 58. The circular central portion 51 provides means for fixing the quadrant lever 56 to the face of the quadrant 4 I by threaded members 59 so that the quadrant lever 56 is rotatable and movable with the quadrant 41. The releasing lever arm 58 extends laterally from the circular central portion 51 of the quadrant lever 56 and will be of sufficient length to adapt it to be brought into abutment with the locking rod trip 54 and to thereby move the locking rod 52 away from the setting bar 8 as the quadrant M is rotated until it is raised so that the cam face 60 of the cam stop member 55 is able to engage the end of the locking rod 52.

When this position is reached, the expansion of the setting bar spring 34 snaps the setting bar 6 over so that the worm 25 is instantly disengaged from the teeth 40 on the quadrant 41 to eliminate any possible injury thereto.

This also frees the quadrant 4i and allows it to rotate back to the predetermined stop position under action of gravity.

The setting or locking bar 8 is further provided with a spring 60 about the end of the locking bar where it extends outwardly of the housing to receive the connecting cable 9. The spring will engage a stop shoulder or washer member 6I fixedly mounted on the setting bar 8 to reduce the shock of the releasing action above described.

Counting device Figure 1 shows a counting device 52 which is mounted on the inner wall of the housing 1 by means of a bracket 63. The counting device may be any suitable type, of which there are many easily purchasable on the open market, which registers by single units. The locking rod 52 is connected to the counting device by means of an elongated eccentric rod 64 connected between the Auditory device An auditory device is further provided to notify the operator that the number of revolutions are completed. This includes a bell mounted in'the inside of the rear wall 20, an L-shaped bell hammer 61 pivotally mounted at 68 in the angle formed by the legs thereof, a bell hammer spring 69, and a bell hammer trip 10 pivotally mounted and movable with the setting bar 8.

When the setting bar is actuated to move the worm 25 into engagement with the teeth of the quadrant 41 as above described, the bell hammer trip 10 moves therewith pivoting so that it does not actuate the bell hammer. On the release of the setting bar 8. the bell hammer trip TI! moves again with the. setting bar 8 but cannot pivot in the. return direction. Accordingly, it trips the. leg of the bell hammer 01 which is connected to. the bell hammer spring 66 causing the bell hammer 61 and the bell; hammer head H on the other arm. to pivot away from. the bell and to expand the spring 69, and then under action of the spring 69 to. move the bell hammer 61 and head 11 towards the bell 6.6 and to strike it, to indicate to the operator that the number of revolutionsv have been completed. A bell hammer damper 12; is provided to prevent excessive. oscillation of the. bell hammer 61.

Modified form of the invention It is believed obvious that where equipment has two or more drums that either two batch meters, one for each drum, or a single batch meter adapted to accomplish the same result by modifying it somewhat could be used.

This latter method is accomplished in the modified form of the batch meter shown in Figures 4 and 5, by expanding the widthwise dimension of the housing and adding the additional actuating, driving and driven means as is hereinafter described.

Referring to Figure 4, the modified batch meter I00 is shown in combination with a dual mixing drum I 0| used in various types of road and building construction.

' Dual mixing drum I M includes a first compartment I02 and a second compartment I03 separated by a partition I04 having a transfer chute I05 mounted therein to transfer mixed ingredients from first compartment I02 to second compartment I 03.

The transfer chute I05 is rotatably mounted by means of a shaft I06 and a spider I 01, the shaft extending longitudinally of the drum and outwardly thereof to a formed lever arm I06 connected through rod I09 to the transfer chute hydraulic actuating means I I0 receiving and returning operating pressure fluid through conduits III and H2 when the transfer chute control II3 actuates the hydraulic system (not shown). The hydraulic system is not shown as it forms no part of the present invention and any suitable hydraulic system may be used through the control I I3 to actuate the transfer chute hydraulic operating means I I0.

Compartment I02 receives the ingredients to be mixed from a charging skip or loader I I4, only a fragment of which is shown in the drawings. The charging skip II 4 is pivotally' mounted by means of a charging skip shaft H5. The skip shaft is provided with a kick-out lever II6 so that as the skip I14 is raised and lowered the kick-out lever I I6 will be moved relative to these respective positions, as is shown on Figure 4 of the drawings.

The modified batch meter I00 is shown in the drawings as having a substantially rectangular box-like housing H8 in which a first and second setting or locking bars H9 and I20 are slidably disposed parallel to each other and to the long axis of the housing and of such length that they extend outwardly of either side thereof. The modified batch meter I00 is mounted adjacent the drum by suitable means as is clearly shown in Figure 4 of the drawings.

The end of the first setting or looking bar I19 extends outwardly of 'the housing on the skip side thereof and is connected by connecting cable I'2I about pulley I22 to the kick-out lever H6. The other end of the setting bar H9 extending out of the side'remote from the skip side is connected through levers I23 and I24 to a transfer chute control stop member I25. The transfer chute control stop member I25 in the set position is abuttedby the stop rod I26 attached to the transfer chute control H3 and the control cannot be operated until the stop member I25 is moved out of the set position, all of which is clearly indicated by the phantomized lines on Figure 4 of the drawings.

Similarly, the end of the second setting or looking bar I26 extending outwardly of the housing on the skip side thereof is connected through a connecting cable I21 about pulleys I25, I26, I36, I5! and I32 to the operating rod I66 of the transfer chute hydraulic operating means H6 so that when the transfer chute I55 is actuated the setting or locking bar I26 will be moved therewith. The other end of the second setting or locking bar I25 is connected through levers 553 and I64 to a discharge chute stop member I55.

The discharge chute stop member I 55 in the set position is abutted by the stop rod 236 attached to the discharge chute control i5? and the control cannot be operated until the discharge chute stop member IE6 is moved out of the set position, all of which is clearly indicated by the phantornized lines on Figure 4 of the drawings. The discharge chute control it? operates the discharge chute operating means I53 connected through lever arm I353 and discharge chute shaft I46 to the discharge chute Edi.

Thus, when the charging skip ii is raised to load its contents into the first compartment I52, the kick-out lever H6 is pivoted to actuate the first setting and locking bar IE6 which in turn actuates the transfer chute stop member E25 through the levers I23 and I24 to prevent the transfer chute 465 (normally closed) from being operated until the setting or locking bar iii) is released by the automatic operation of the mothfied batch meter as is hereinafter described.

When the firstsetting or locking bar 129 is released, the manual operation of the transfer chute operating lever I I3 will rotate the transfer chute m5 to the transferring position by actuating the transfer chute hydraulic operating means H6. This causes the operating rod I69 to move downwardly and to pull the connecting cable I2? connected to the second setting or locking bar I26 to set the second setting or looking bar I26. The movement of the second setting or looking bar I26 in turn actuates the levers I33 and E34 connected to the discharge chute stop member I55 to prevent the discharge chute I4i (normally in non-transferring position) from being operated until the second setting or looking bar 3253 is released by the automatic operation of the modified batch meter as is hereinafter described.

The portions of the modified batch meter for each compartment of the dual drum are substantially identical to those portions required for operation of a single drum. Thus, the modified batch meter is provided with two drive portions 'which are continuously'rotated whenever the mixing drum is rotated and identical driven portions for engagement one with each of said drive portions. The driven portions as in the first described basic batch meter remain in engagemerit for a predetermined number of revolutions and thereafter actuate releasing and locking means for each of their respective setting bars so that the setting bar can be moved back to release either the transfer control stop means or the discharge chute stop means connected to one or the other of the members being actuated.

Drive portions 01 modified batch meter Accordingly, referring to Figures 4 and 5, the dual mixing drum I6! is shown having a ring gear I42 disposed thereon to mesh and drive a pinion I43 which is mounted on one end of a shaft I44 extending into a gear case I45 where it receives a bevel gear I46 on the other end thereof. The gear case is mounted on the back wall of the housing II8 by bolts I47.

As clearly shown in Figure 5, the bevel gear I46 engages and drives a beveled pinion I48 connected to and rotatable with a transverse shaft E49 disposed perpendicular to the horizontal length of the housing H8 and mounted by suitable means such as a bushing I55 supported by a bracket I5I.

Two worm shaft supports I52 and I53, identical except that they are the mirror images of each other, are movably and rotatably mounted on transverse shaft i49 for movement through an are having the axial line of said transverse shaft as its center.

Since the worm shaft supports I52 and I53 are mirror images of each other, when mounted on the transverse shaft I 49, they will have their lateral brackets E54 and I55 on work shaft support I52 and H56 and I5? on worm shaft support I53 extending towards and disposed adjacently to each other, as is clearly shown in Figure 5. These lateral brackets provide means for mounting a first worm shaft I56 and a second worm shaft support hi6 therein such that their respective axial lines are perpendicular to the axial line of the transverse shaft I46. Worm members I56 and I6! are provided on each of said worm shafts I58 and 556, respectively, and are fixedly connected thereto so that they will continually rotate when said worm shafts I56 and I56 are rotating.

The worm shaft supports I56 and I59 are each rotated by miter gears I62 and I63 for worm shaft support I58 and miter gears I64 and E65 for worm shaft support I55. Miter gears I62 and I64 are disposed on the ends of the worm shaft supports I56 and I59, respectively, adjacent the transverse shaft I49 so that the beveled faces thereof are at all times in the arcs of movement of the worm shaft supports I52 and I53, in engagement with its respective miter gears I63 and I65 fixedly connected and rotatable with the transverse shaft I46, all of which is clearly shown in Figure 5 of the drawings.

Thus, whenever the dual type mixing drum IIII is rotated the ring gear I42 will drive the pinion I43 which in turn drives the shaft I44 and bevel gear I46 in the gear casing I45. The bevel gear I46 meshing with beveled pinion I48 rotates the transverse shaft I49 connected to the bevel pinion I48 and hence the miter gears I63 and I65 fixedly mounted on the transverse shaft I49. The miter gears I63 and I65 in turn rotate miter gears I62 and I64, respectively so that the shafts I58 and I59 connected thereto and the worm members I60 and "SI aflixed to the shafts Will' fixed projections 16!! and Hi on set ing oi'locking bars I I9 and I20, respectively. These setting or looking bars I I9 and I20 as in the basic batch meter for single drum above described normally urge these worm shaft supports I52 and I53 to the released or non-engaged position with re,-

spect to the driven portion, hereinafter described.

This is accomplished as in the basic batch meter for single drums above described by means of setting bar springs (not shown), which are mounted about the setting or look ng bars H8 and I2!) respectively so that they abut between the inner wall of the skip Side of the modified batch meter housing H8 and pin members linot shown) inwardly of said walloneach of said setting bars H9 and I 20.

When the setting or looking bar I19 is aptitated by the kick-out lever I I5 lit-above described, it will move the worm shaft support-member 152 from the released or nonaengaged position to the locked or set position. This moyeznent will the limited by a stop shoulder III) which projects laterally from the worm shaft support I5; which abuts a threaded adjustment mean III held in any desired position by a locking nut ;I 18 whereby the movement'of the worm:shaftsupportmernber I52 will be just sufiicient to bring the worm :Ijfl into engagement with one of the driven portions in the modified batch meter I08.

S mila ly, when the sett n 10; ki bar 20 is actuated by operation of the t ansfer hute hydraulic operating membe H0 a abo e d scribed, it will move the wormrshaft support 53 om the rel ased non-en a ed p s tion to the locked or set pos t-ion This mov m nt is likewise limited by a second stop member I13 which projects laterally from the worm shaft support 153 and which abuts a seoondthreaded adjusting means I14 and lockingnut I15 :to limit the gmovement so that the worm ,I 8I will just engage a second vdriven portion in the modified batch meter I00.

v n p rti n f m d fied'batc met The drivenportion of .themodifiedbatoh meter I 00 includes semicircular quadrants I I16 and I 11, one for each ,of the worm members I60 and (I BI and in alignmenttherewith, identical with those shown for the basic batch meter-illustrated in Figuresz ands ofthedrawings. Theouadrants I16 and Ill are bothmountednona quadrant shaft I'I'I disposed transversely with lrespect'to the Ilongerlengthlzof the modified tl bo-tch lmeter housing I I8 in .a plane. parallel zto the planelpi the transverse shaft L49. ItEachizqnadrantlislidentioal with those above -.descr;i;bed (batch meterand are I weightedltol allowtthem tolrotate to the desired position, suitable readjustment clamps and quadrant stops being prowided therefor.

The movement :of theworm-supporhshaitssl il and I53 is adjusted as'abovel described :to :allow the worms I61! and 'I-IBI respectivelythereonuto engage gear teethAI'R and :llsuon their rlesnec tive quadrants I 16 andl. 1.1 fon-eachofsaid worms IGBand IIiI.

:The quadrants beingidentioahwith those I described for the basic: batch: meter shown 31:}. [Fig.- ures 2 and 3 can -.a1so.;be. adjusted lacoordanc with I the desiredtmlmberlzofvtnrnsqofr the mixin drum required for r the "particular compartment in which the ingredients :areI.bein I:mi2;ed.

Thus, since each of-th worms 1 60; and; I5; are continuously "opera-tin wheneter hea set/ ne mixing drum moieties. :Iwhen her 19 rms are in ngagement th h t e "I or I19 of one or the other of the quadrants I16 and I" then the quadrant will be rotated as long as it is engagement therewith. The number of tu ns the mi in d um I01 mat s r a itular m a tmen can heref bem ur in terms of the teeth I18 or I 18 on the respective quad ants a ac o n l the des re a o nga ement p e rmine fo elven tac of oncrete to b m xed- Fo ex m le, i a o t n eries f ba he o b mixe roll-Hi e 20 tur s, han the fir t baton l e load d the first omp rtment t"? i9! 99 1 15 an fil nl ie l d o thesec nd art e 03 o an he 00 turns, gt'he first compartment will, of course, be eload d aft r t e trans er is mad s a a new batc can h PMWQ (9 101 511 W deal m xin I 09.

T fac o th housing .I l 8 of the b tch mete I08 will be open so that suitable adjustments can be made to the quadrants I16 and H1, gince they are freely rotatable, both face thereofcan be reached. A cam member I isprovided for this open face of the housing I I8.

Locking and releasing the setting bars 119 and Abra '8' is m u ted ert ca at oss he longer length of the housing IuI8 just inwardly of the en e the eof t re vea fir lookin rod s pp '82 e eo A e ond ock n rod support I83 is mounted on the back wall of the housing I I8 substantially in alignment with the rst ooklneod t npor I Each of saidloclzing rod supports I82 and I83 We ll oor sk fi and I8 nd formed thereon in spacedrelation toeach other, as is clearly shown in Figure 5 of the drawing s. A first locking rod I88 is slidably mounted at a po t 84 and o lookin odl-s pport I82 perpendicular to the axial lineof the ttin o loo ing J 1: an I a c nd l ckin rod I89 is mounted in lateral supports I86 and I8! of lockingr od support J83 perpendicular to he axia ineo thee tti e o l o n a I 9- ihe e looki sods 33 n "39 re norm l y reed toward th r re pec ve setting :ba s' I t nd I20 by irst and secolld lookingybar springs I90 d I9! mounted -ab9u .e r s ective ook ing rods I88 and I89 to engage the respective lateral supports I84 and -I86 at one end and its respective first Iloolsine a trip I192 fixe ly 99nn c e and; movab e i h ooking bar I88 and. se nd look ng her t ip I93 fixu l t nneotedend movable with looking bar I 88 vat the other end,

n th eleased o moment-r ged positio th endof lookingrbar I88 willbe insliding contact with a first cam stop member I84 fixedlvconnected to and movable with thesetting or looking bar 9- lfiimi at yl h n of l ckin be I I-wliv eb ins id nelqon att witha eoon oa t m m I .9 i th re eas or n n -en aged position.

When neo th othe th settin onlookne bar area t at w hei tnrinss no shown) aremp ess a wa betde c bed fo I the set ledloc n e tin t e batc mete shown i Figure ,2- h s m iim smoe-tbe n slor h oc in me landlit-er I e it me c nta t w t he tam stq amembe s I m and I95, they will when one or the other of the setti e h rsare m ve tsli to h tamstop meme lfifi an I-95 n Slid n ue'aeemen with ts s ective se ieelba ten in u menty ill th -.-I ndyi b pa tisan; o I re ent lye rsam stop each setting bar as was described above and. shown for the basic batch meter in Figures.

2 and 3 of the drawings.

To release the locking rod I88 or I89, quadrant levers I96 and I91 are provided. The quadrant levers I96 and I91 are identical in construction as those described above for the basic batch meter shown in Figure 2 of the drawings. However, they are mounted on opposite sides of their respective quadrants I10 and I11 as is clearly shown in Figure 5. or the drawings. The quadrant levers I96 and I91 are provided with laterally extending arms I98 and I99. Each of the laterally extending arms are of suflicient length so that arm I98 is adapted to abut the locking rod trip I92 and arm I99 is adapted to abut.

locking rod trip I93.

The quadrant levers connected and rotatable with the quadrants I19 and I11 as above described in the basic batch meter shown in Figure 2 of the drawings and accordingly as one or the other of the quadrants I16 and I11 are rotated the lever arms I98 and I99 will engage its respective lever arm trip I92 or I93 so the cam face of one or the other of the cam stop members engage the end of the locking rod being contacted.

When this position is reached, the expansion of the setting bar springs (not shown) snaps the respective setting or locking bars H9 and I20, affected, to the non-engaged position so that the worm I60 or IBI is instantly disengaged from the respective gear teeth I18 or I19 on the quadrants.

This movement also frees one or the other of the quadrants I16 and I11 and allows them to rotate back to the predetermined stop position under action of gravity.

Since each of the setting or looking bars H9 and I20 are identical in construction with the member in Figure 2 showing the basic batch meter for single drums, they will also be provided with springs (not shown) to reduce the shock effect of the releasing action.

Counting device Since the material is moved from compartment I02 to compartment I03 only a single counting device is necessary to count the number of batches mixed in the dual mixing drum NH.

The counting device is substantially identical with that in the basic batch meter shown in rod I88 and an actuating arm 203 on the counting device.

Each time the locking rod I88 is lifted to release the setting bar II9, one unit is registered on the counting device, each unit being the equivalent of one batch, whereby a countmay Whichever setting bar is so moved will I96 and I91 are fixedly I94 or I95 will A be maintained for the number of batches mixed in a period of time or for a particular job.-

' Auditory device An auditory device is further provided foreach:

compartment to notify the operator that the number of revolution are completed. This includes a bell 204 mounted on the front cover which coacts withmeans (not shown) which' are operatedby the setting or,1ocking bar I19. Similarly, a bell 205 is mounted on the rear wall of the housing II8 whichcoacts with means (not shown) which are operated by the setting or looking bar I20.

The means coacting with each of the setting bars H9 and I20 are identical with the various members coacting with the setting or, looking bar 8 in the basicbatch meter shown in Figures 2 and 3, and operate as above describedwith reference to these members.

While these forms of the invention have been illustrated and described, it will be understood that the invention is not to be limited to the specific construction or arrangements of parts shown but that they may be widely modified within the invention defined by the claims.

What is claimed is:

l. The combination with mixing apparatus including, at least one mixing drum, a charging means for said mixing drum, a transfer means for discharging mixed ingredients from said mixing drum, and lever means for controlling said transfer means of, a batch meter including, a housing, driving means connected for continuous rotation with said drum pivotally mounted in said housing and disposed transversely of the longitudinal line of said housing, a driven timing means disposed parallel to the longitudinal line of said drum and perpendicular to said driving means, a setting rod slidably mounted in said housing connected to said driving means and normally maintaining said driving means out of engagement with said driven timing means, a trip mechanism, said setting rod operated by the charging means to move said driving meansinto engagement with said driven timing means to set said trip mechanism and to lock said lever means in the set position, means on said driven timing means for releasing said trip mechanism after a predetermined number of revolutions of said drum, and means for returning saidsetting rod to the released position.

2. The combination with mixing apparatus including, at least one mixing drum, a charging means for said mixing drum, a transfer means for discharging mixed ingredients from said mix-' ing drum and lever means for controlling said transfer means of, a batch meter including, a housing, driving means connected for continuous rotation with said drum pivotally mounted in said housing and disposed transversely of the longitudinal line of said housing, a driven timing means disposed parallel to the longitudinal line of said drum and perpendicular to said driving means, a setting rod slidably mounted in said housing connected to said driving means and normally maintaining said driving means out of engagement with said driven timing means, a trip mechanism, said setting rod operated by the charging means to move said driving means into engagement with said driven timing means to set said trip mechanism and to lock said lever means in the set position, adjustable stop means formed in said housing to just allow said driving'means to engage said driven guests .13 timing means, means on said driven timing means for releasing said trip mechanism after a predetermined number of revolutions of said drum, and means for returning said setting rod to the released position.

3. In the combination as claimed in claim 2 wherein said adjustable stop means comprises a lateral projection on said driving means, an :adjustable threaded member mounted in said housing to abut said lateral projection on movement of said driving means by said setting rod, and a locking nut to hold the threaded member in the adjusted position.

4. The combination with mixing apparatus including, at least one mixing drum, a charging means for said mixing drum, a transfer means for discharging mixed ingredients from said mixing drum, and lever means for controlling said transfer means of, a batch meter including, a housing, driving means connected for continuous rotation with said drum pivotally mounted in said housing and disposed transversely of the longitudinal line of said housing, :a driven timing means disposed parallel to the longitudinal line of said drum and perpendicular to said driving means, a setting rod Islidablvmounted in said housing connected to said driving means and normally maintaining said driving means out of engagement with said driven timing means, a trip mechanism, said setting Trod operated by the charging means to move said driving means into engagement with said driventiming means to set said trip mechanism an'dto lock said lever means in the set position, adjustable stop'means formed in said housing to justfallow said driving means to engage said driven Itiming means, ineans on said driven timing means' for'reIeasing said trip mechanism after a predetermined number of revolutions of said drum, means "for returning said'setting rod to the released position, and a counting device to'register each batch mixed including, a mechanical counter havingan actuating arm, an elongated lever connected between s'aid actuating armand'theend of saidltrip mechanism remote from said settingrod an'dactuated by the release of said tripmechanism.

M 5. The combinationiwith mixing apparatus including, at least "onemixing drum, a charging rnans"for"saidmixing drum, a transfer means fordiSCharging mixed ingredientsfrom said mixing drum,'and levenmean's for controlling said transfer means of, a batch meteninclu'ding, a housing, a transverse sliaft'mounted in'sai'd' housing'and connected for continuousrotation "with said'druma driving means'irotated'by:said transverse shaft and 'rnounted thereon for movement man are havingth'e axial line of said transverse shaft as its "center, 'a'freely rotatable driven timinglduadranthavingteeth'on'the"outerfperiphery thereof perpendicular to the -axial "line of .the drivingfmeans, a setting "IIOd "slidably mounted in said housing connected to said driv'in'gmeans and normally maintainingsaid s'driving means in the released, position, said "settingrod operated by said charging means to "move the driving means into the set :position ror engagementwith the' teeth of said drive'n timingnua'drant "andto iocksai'd" lever means-atrip meclriamsm set *by movement of said setting bar and released' by said driven timing "quadrant -=mer a predetermined number "of revolutions of said fdru'm; and means for'return'iiig the setting'rod to the released position.

"*6. The combinationwithmixing apparatus incliiding. at" least one "drum, a charging means for said mixing drum, a transfer means for discharging mixedingredien-ts from said mixing drum, and lever means for controlling said transfer means of, -a batch meter including a housing, a transverse shaft mounted in said housing and connected for continuous rotation with said mixing drum, a worm shaft support mounted on said transverse shaft for movement in an are having the axial line of said transverse shaft as its center, a worm shaft provided with a worm member thereon mounted on said worm shaft support and disposed perpendicular to the axial line of the transverse shaft and rotated continuously therewith, a freely rotatable driven timing quadrant having teeth .on the outer periphery thereof perpendicular to the axial line of the worm shaft, a setting rod slidably mounted in said housing connected to said worm shaft support and normally maintaining said worm member out of engagement with the teeth or said driven quadrant, said setting bar operated by the chargingmeans to move the worm shaft support into the set position so that the worm member will engage the teeth of the driven quadrant and to lock the lever means, a trip mechanism set by said movement of the setting bar, means on said driven quadrant for releasing said trip mechanism after a predeteririined number of revolutions of said drum, and lmean's ,for returning thesetting bar to theireleasedposition.

7. In the combination as claimed in claim 6 wherein themeans for. releasing the trip mechanism includes, a quadrant lever, said ,quiadriant lever connected at its =central portion to said quadrantand movableitherewith, an'daf lever arm formed on saidlquadraritlleverextending.,1 aterally to contact and movesaid.tripjmechanism.

8. The combination .Withmixing appara'tusineluding, at least one mixing ,drum, .a charging meants for saidmixingdruma transfer means for discharging mixed ingredients from said'mixin drum, and lever means for controlling said transfer :means of, ,a batch ,meter including a housing, .a transverse .shaft :mounted ,in said housing and connected {for continuous rotation with said mixing drum, .a worm shaft support mountedon saidtransverse shaft "for movement in an arc havinglthe axial "linewof said transverse shaft as itscenter, a.w.orm shaft provided with. a Worm member thereon mounted on said worm shaft support and disposed,perpendicularito'the axial line of .the transverse shaftand rotated continuously therewith, afreely, rotatable driven timing quadrantfhaving teeth on'the .outer'periphery. thereof perpendicular to the axial line of the worm shaft, a setting: rod slidably mounted in said housing connected to said wormoshaft support and normally maintaining said .wormmemher out of engagement with the teeth of said driven quadrant, said ,s'etting bar operated by the charging meanslto move the worm shaft support into'the set position-so that the worm memher will engagerthe ,teethof the driven quadrant and to loeklthe lever means, a trip mechanism set by said movement ,oflthe setting bar, means .on said driven quadrant f-or .releasing said -trip mechanism after a predetermined number of revolutions of said drum, adjustable stopmeans formed in said housing-,tojust allowl-saidworm toengage the teeth on-isaid driven timing quadrant, means on said driventiming-quadrant,for releasing said t1'ip, mechanism,.after a predetermined number .of revolutionsvof .saidtdrum, and means for returnin said settingrod to therelease'd position.

9. in the combination as claimed'in claim 8 wherein said adjustble stop means comprises a la eral projection on said worm shaft support, an adjustable threaded member mounted in sci housing to abut said lateral projection on movement of said Worm shaft support by the setting rod, and a locking nut to hold the threaded memher in the adjusted position.

10. A batch meter comprising a housing, a continuously rotating shaft disposed transversely of the longitudinal dimension in said housing, driving means connected for continuous rotation with said shaft and mounted on said shaft for movement in an arc having the axial line of said shaft as its center, driven timing member disposed parallel to the longitudinal line of said housi and perpendicular to said driving means, a setting rod slidably mounted in said housing and connected to said driving means for moving it into and out of engagement with said driven timing member, a tripping mechanism coacting with said setting rod when it moves the driving means into the engaged position and to hold it in this position until released, and means on said driven timing member to release the tripping mechanism after a pre-determined number of revolutions of said driving means to allow said setting bar to move to the released position.

11. A batch meter comprising a housing, a continuously rotating shaft disposed transversely of the longitudinal dimension in said housing, driving means connected for continuous rotation with said shaft and mounted on said shaft for movement in an are having the axial line of said shaft as its center, driven timing member disposed parallel to the longitudinal line of said housing and perpendicular to said driving means, a setting rod slidably mounted in said housing and connected to said driving means for moving .it into and out of engagement with said driven timing member, a tripping mechanism coacting with said setting rod when it moves the driving means into the engaged position and to hold it in this position until released, an adjustable stop means including a lateral projection on said driving means, an adjustable threaded member mounted in said housing to abut said lateral projection on movement of said driving means to just allow said driving means to engage said driven timing member, and a locking nut to hold said threaded member in its adjusted position, and means on said driven timing member to release the trippin mechanism to allow said setting rod to move to the released position.

12. A batch meter comprising a housing, a continuously rotating shaft disposed transversely of the longitudinal dimension in said housing, driving means connected for continuous rotation with said shaft and mounted on said shaft for movement in an are having the axial line of said shaft as its center, driven timing member disposed parallel to the longitudinal line of said housing and perpendicular to said driving means, a settin rod slidably mounted in said housing and connected to said driving means for moving it into and out of engagement with said driven timing member, a tripping mechanism coacting with said setting rod when it moves the driving means into the engaged position and to hold it in this position until release, and means on said driven timing member to release the tripping mechanism after a predetermined number of revolutions of said driving means to allow said setting bar to move to the released position, and a counting device to register each batch mixed including a mechanical counter having an actu ating arm, an elongated lever connected between said actuating arm and the end of said trip mechanism remote from said setting bar and actuated by the release or" said trip mechanism.

13. The combination with mixing apps ratus including, a plurality of rotatable mixing comparallel to each other and transversely of the longitudinal line of said housing, a driven timing member for each compartment each disposed parallel to the longitudinal line of said housing and to each other and perpendicular to its respective driving means, setting bars slidably mounted in said housing in spaced relation whereby each is in alignment with its respective driving means and is connected thereto for normally maintaining the driving means out of engagement with said driven timing members, a trip mechanism for each of said setting rods, one of said setting rods operated by said charging means and another of said setting rods operated by said transfer means on release of said setting rod operated by said charging means, to allow said setting bars to move its respective driving means into engagement with its related driven timing means, to set its trip mechanism and to lock the lever means controlling the transfer means and the discharge means of the compartment under operation, means on each of said driven timing members for releasin its respective trip mechanism after a predetermined number of revolutions of said drum, and means for returning each of said setting rods to its released position when the trip mechanisms are so operated.

14. The combination with mixing apparatus including, a plurality of rotatable mixing come partments, a charging means for at least one of said compartments, a transfer means for discharging mixed ingredients from one compartment to the other, a discharge member for at least another compartment, a lever means for controlling said transfer means, and asecondlevermeans for controlling said discharge member of a batch meter including a housing, a driving means for each compartment in said housing connected for continuous rotation with its respective mixing compartment and disposed parallel to each other and transversely of the longitudinal line of said housing, a driven timing member for each compartment each disposed parallel to the longitudinal line of said housing and to each other and perpendicular to its respective driving means, setting bars slidably mounted in said housing in spaced relation whereby each is in alignment with its respective driving means and is connected thereto for normally maintaining the driving means out of engagement with said driven timing members, a trip mechanism for each of said setting rods, one of said setting rods operated by said charging means and another of said setting rods operated by said transfer means on release of said setting rod operated by said charging means, to allow said setting bars to move its re pective drivin incans into engagement with i .1 v n the comb na on as c aim d in c m 14 wher i sai adju tabl stop an comp i s a late ally di posed p o ect on o each of said. d i ins ns adjus bl th ea ed membe moun ed ,in sa d h usi eac adap e o a t a ea one of said lateral projections on movement of sai drivin ans by sa sett r d an l ing nuts to hold each threaded member in the ad u d pos tio li T e combinat on i i i g apparetws nc ud n a ot tab e mixing u in a first a second compartment for mixing ingredie ents therein, charging means for said mixing drum, ,a transfer chute for transferring mixed ingredients from one compartment to the other, a discharge member for discharging mixed ingrediex ts from said mixing drum, a lever means for controlling said trans-fer chute, and second lever means for controlling said discharge member of a batch meter including a housing, a transverse s aft mount d said hous ng a d on e ted for continuous rotation with said mixing drum, a

first and a second worm shaft support mounted on said transverse shaft in spaced relation to each other and for movement in paralle1 arcs having the axial line of said transverse shafts as its center, a worm shaft on each of said worm shaft supports provided with a worm member thereon, said worm shafts disposed perpendicular to the axial line of the transverse shaft and connected thereto for continuous rotation therewith, freely rotatable driven timing segments for each of said worm shaft supports and each having teeth on the outer periphery thereof perpendicuglar to the axial line of the worm shaft, a first and a second setting rod gslidably mounted in said housing and connected to said first and second Worm shaft supports for normally maintaining said worm shaft supports out of engagement with the teeth of its respective driven timing quadrant, said first setting rod operated by said charging means to move the first worm shaft support into engagement with its respective driven timing quadrant and to lock the lever means for controlling the transfer chute, said second setting rod operated by release of said transfer chute to move the second worm shaft support into engagement with its driven timing quadrant and to lock the second lever means for controlling the discharge member, a trip mechanism for each setting rod set by movement of said rod, means on each. of said driven timing quadrants for relea-sing its respective trip mechanism after a predetermined number of revolutions of said drum, and means for returning the setting rods to their released position when the trip mechanism is released.

1'7. In the combination as claimed in claim 16 wherein the means on each driven timing quadrant for releasing the tripping mechanism includes, quadrant levers, said quadrant levers connected at their central portions to said driven timin gradients and movabl ther with, a

leve arms for ed o ai ad ant eve s a te dine lat ra to co tact nd mor th es e ive ri mech nism fo th qu dnt- B Th com in tion w h mixi g ara includin a rota able i in u h ing a fir and a s co d com artm nt or x n ing ed here n, char n me n for sai m xin d um. a tra s e 911 1 fo t ans e i g mixe in d nt from one ompa m to. the othe dischar e member o d s hargin ixed i s ed ents f om s id mix n d um a lever me for controlling said transfer chute, and second lev r mea s fo con ol in s d ha m ber of a batch meter including a housing, a transverse shaft mounted in said housing nd @911- nected for continuous rotation with said mixin drum, a first and a second worm shaft support mou e on a an e s a t in paced la ic t ac other and f r mo nt in ra lel arcs having the axial line of said transverse shafts as its center, a worm shaft on each of said Worm s a su po ts p id h a worm m ber thereon, said worm shafts disposed perpendicular to the axial line of the transver Shaft and connected thereto for continuous rotation therewith, freely rotatable driven timing segments for each of sai Worm shaft supDOlts and each havin teeth on the outer periphery thereof penpend-icular ,to the axial line of the worm shaft, a first and a Se ond setting rod slidably mounted in said housing and connected to said first and second worm shaft supports for normally maintaming said worm shaft supports out ,of engagement with the teeth of its respective driven timsaid w m to eng e t e t n said d iv tim n quad ant a t mechani m or ea set ng rod .setby mo eme of said red means On each .Of said driven timing quadrants for releasing its respective trip mechanism after a predetermined number of revolutions of said drum, and means for returning the setting rods to their released position when the trip mechanism is released.

19. In the combination as claimed in claim 18 wherein said adjustable stop means comprises a lateral projection on each of said worm shaft supports, adjustable threaded members mounted in said housing each adapted to abut at least one of said lateral projections on movement of said driving means by said setting rod, and a locking nut for each of said threaded means for holding the same in adjusted position.

20. A batch meter comprising a housing, a continuously rotating shaft disposed transversely of the longitudinal lin of said housing, a plurality of driving means connected to said transverse shaft for continuous rotation therewith and mounted thereon in spaced relation for movement in parallel arcs having the axial line of said transverse shaft as centers, a driven timing means for each of said driving means disposed parallel to the longitudinal line of said housing and to each other and perpendicular to the driving means, a,

" plurality of setting rods slidably mounted in said housing one for each driving means and connected to said driving means for moving said driving means into engagement with said driven timing members, a tripping mechanism coactin with each of said setting rods when it moves the driving means into engagement and to hold them in this position until released, and means on each of said driven timing members to release its respective tripping mechanism after a predetermined number of revolutions of said driving members to allow said setting bar to be moved to the released position.

21. A batch meter comprising a housing, a continuously rotating shaft disposed transversely of the longitudinal line of said housing, a first and a second worm shaft support mounted on said transverse shaft in spaced relation for movement in parallel arcs having the axial line of said transverse shaft as centers, worm shafts having worm members thereon on each of said worm shaft supports disposed perpendicular to the axial line of the transverse shaft and connected thereto for continuous rotation therewith, driven timing quadrants for each of said worm members disposed parallel to the longitudinal line of said housing and to each other and having teeth on the outer periphery perpendicular to the axial line of said Worms, a first and a second setting rod for each of said worm shaft supports slidably mounted in said housing and connected to said worm shaft supports to move the Worms into engagement with the teeth of its respective driven timing quadrant, a tripping mechanism coacting with each of said setting rods when it moves the worm shaft support to the engaged position and to hold them in this position until released, and means on each of said driven timing members to release its respective tripping mechanism after a predetermined number of revolutions of its driving means to allow the setting rod to return to the released position.

22. A batch meter comprising a housing, a continuously rotating shaft disposed transversely of the longitudinal line of said housing, a first and a second worm shaft support mounted on said transverse shaft in spaced relation for movement in parallel arcs having the axial line of said transverse shaft as centers, worm shafts having Worm members thereon on each of said worm shaft supports disposed perpendicular to the axial lineof the transverse shaft and connected thereto for continuous rotation therewith, driven timing quadrants for each of said worm members disposed parallel to the longitudinal line of said housing and to each other and having teeth on the outer periphery perpendicular to the axial line of said worms, 3, first and a second setting rod for each of said worm shaft supports slidably mounted in said housing and connected to said worm shaft supports to move the worms into engagement with the teeth of its respective driven timing quadrant, a tripping mechanism coacting with each of said setting rods when it moves the worm shaft support to the engaged position and to hold them in this position until released, adjustable stop means including lateral projections on each of said worm shaft supports, adjustable threaded members mounted in said housing and to abut its respective lateral projection on movement by the setting rod to just allow said worm to engage the teeth of said driven timing quadrant, and a locking nut for each of said threaded members to hold said threaded members in their adjusted position, and means on each of said driven timing members to release its respective tripping mechanism after a predetermined number of revolutions of its driving means to allow the setting rod to return to the released position.

23. In the combination as claimed in claim 22 wherein the means on each driven timing quadrant for releasing the tripping mechanism includes, quadrant levers, said quadrant levers connected at their central portions to said driven timing quadrants and movable therewith, and lever arms formed on said quadrant levers extending laterally to contact and move the trip mechanism on rotation of the driven timing quadrant by the worms.

ALFRED W. SLACK. ROBERT A. SNYDER.

References Cited in the file of this patent UNITED STATES PATENTS Number Name Date 1,738,045 Eggert Dec. 3, 1929 1,946,944 Lichtenberg Feb. 13, 1934 2,030,747 Garber et a1 Feb. 11, 1936 2,269,014 Faber Jan. 6, 1942 

